#include <stdio.h>

#define N 10

int main(void)
{
    int arr1[N];//没有初始化，数组值是随机值
    for(int i = 0; i < N; i++) 
        scanf("%d", &arr1[i]);

    int max = -1;
    for(int i = 0; i < N; i++) 
        max = max > arr1[i] ? max : arr1[i];

    printf("max = %d\n", max);
    int a = 10;
    printf("%d\n", (&a)[0]);

    printf("%d\n", arr1[-1]);
    return 0;
}
